Manufacture of multicolored fabrics.



UNITED STATES MARTIN BOHLER,

Ul \\"lLHE LMSBAD, GERMANY,

ASSIGNOR TO CASSELLA COLOR COMPANY, OF NEW YORh, N. Y.

MANUFACTURE OF MULTICOLORED FABRICS.

To all :whom it may concern:

citizen of Prussia, German Empire, and residing at lVilhelmsbad, in the district of Hanau, Germany, have invented certain new and useful Improvements in the Manufac Specification of Letters Patent. Application filed September 21, 1907.

lg'rams sodium sultid ture of l\:lulticolored Fabrics, of which the l following is a specification.

Hitherto dyed cotton goods containing differently colored wool efi'ectthreads could only be produced by ods. I have now discovered that. excellent effects can be obtained if the material consisting of cotton and wool is subjected to a preliminary treatment with formaldehyde and tannin, and then dyed in a cold or lukewarm bath with sultid colors. ceeding in is absorbed by the cotton only, maining colorless; the latter may then be dyed with acid colors to any desired shade.

The method of working is illustrated by the following example: Treat the material which should be well washed and the wool re- Very complicated inethls hen pro- 5 this manner the coloring matter 1 cotton and wool to may also t be mercerized for one hour in a boiling hot bath containing 20 to hyde and to 5 grams grams formaldes of water, then rinse and dye in a cold or lukewarm dye bath prepared with the necessary sulfid color which has been dissolved Patented Nov. 24, 1908. Serial No. 393,977.

I with the addition of sodium sulfid and glue it known that I, MARTIN BGHLER, a

cose. Prepare for instance a liquor with 20-30 grams immcdial black NNG cone. (katigenc black, sulfur black, etc.), 20-30 crystals, 4060 grams glucose, 2 grams soda ash, 2 grams Turkeyred oil, 520 grams Glauber salt, 1 liter water. boil for about lOniinutes and allow to cool to 20-10 C. Dye at this temperature for about hour, squeeze well and rinse thoroughly.

it" it be desired to produce colored Wool efi'ects instead of white ones. the wool may be dyed with suitable dyestufi's before or after dyeing the cotton.

laying now described my invention and the manner in which it may be carried out,

what I claim is:-

The process of tin-thing multicolored fabrics by subjecting material consisting of a preliminary treatment with formaldehyde and tannin and subsequently dyeing with a sulfid color.

In witness whereof I have hereunto signed my name this 6th day of September 1907, in the presence of two subscribing witnesses.

MARTIN BGHLER. lVitnesses JEAN GRUND, CARL GRUND. 

